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基于Screened Ratio原理的冲击噪声环境下DOA估计算法
引用本文:何劲,刘中.基于Screened Ratio原理的冲击噪声环境下DOA估计算法[J].电子与信息学报,2006,28(5):875-878.
作者姓名:何劲  刘中
作者单位:南京理工大学电子工程系,南京,210094
摘    要:该文提出了一种冲击噪声环境中DOA估计的算法。算法首先根据Screened ratio原理构造阵列信号的相关矩阵,然后利用MUSIC算法实现DOA估计。与基于分数低阶矩(FLOM)的算法相比,该文算法不需要选择FLOM参数p。计算机仿真表明该文算法在冲击噪声环境下具有更佳的稳定性和估计精度。

关 键 词:MUSIC算法    冲击噪声    协变系数    分数低阶矩
文章编号:1009-5896(2006)05-0875-04
收稿时间:2004-10-18
修稿时间:2005-04-18

Screened-Ratio-Principle-Based DOA Estimation Algorithm in Impulsive Noise Environment
He Jin,Liu Zhong.Screened-Ratio-Principle-Based DOA Estimation Algorithm in Impulsive Noise Environment[J].Journal of Electronics & Information Technology,2006,28(5):875-878.
Authors:He Jin  Liu Zhong
Affiliation:Dept.of Electron. Eng., Nanjing Univ. of Sci. and Tech., Nanjing 210094, China
Abstract:This paper present a new DOA estimation algorithm in impulsive noise environment. The algorithm uses firstly screened ratio principle to construct the correlation matrix of the array data and then implements the DOA estimation by MUSIC algorithm. In comparison with the Fractional Lower Order Moment (FLOM)-based algorithms, the proposed algorithm does not need the selection of the FLOM parameter. Computer simulations show that the algorithm is more robust and more accurate than FLOM-MUSIC algorithm.
Keywords:MUSIC algorithm  Impulsive noise  Covariation coefficient  Fractional lower order moments
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